Home / 86,145.34-118,904.08-55,929.10

Finding the Fourth Proportional to 86,145.34, 118,904.08 and 55,929.10

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Solution

The fourth proportional to 86,145.34, 118,904.08 and 55,929.10 is: 77,197.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,145.34 : 118,904.08 = 55,929.10 : x
  2. Step 2: Convert to fraction form
    86,145.34/118,904.08 = 55,929.10/x
  3. Step 3: Cross multiply
    86,145.34x = 118,904.08 × 55,929.10
  4. Step 4: Simplify right side
    86,145.34x = 6,650,198,180.73
  5. Step 5: Solve for x
    x = 6,650,198,180.73/86,145.34
  6. Step 6: Final answer
    x = 77,197.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.